About the Authors

Alf Ring Kleiven

alf.ring.kleiven@imr.no

Affiliations Institute of Marine Research (IMR), Arendal, Norway, Faculty of Biosciences, Fisheries and Economics, University of Tromsø, Tromsø, Norway

Esben Moland Olsen

Affiliations Institute of Marine Research (IMR), Arendal, Norway, Centre for Ecological and Evolutionary Synthesis (CEES), Department of Biology, University of Oslo, Oslo, Norway

Jon Helge Vølstad

Affiliation Institute of Marine Research (IMR), Bergen, Norway

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: ARK EMO JHV. Performed the experiments: ARK. Analyzed the data: ARK EMO JHV. Contributed reagents/materials/analysis tools: ARK EMO JHV. Wrote the paper: ARK EMO JHV.